At the moment I have some yate loons highs, usually run at yate loon medium speeds, on my alphacool 240mm rad. It had 9.6fpi but is 80mm thick and does benefit from high static pressure according to all that I have read. My temps are pretty good right now also.

The whole reason I am even asking is because I can get the sp120's for $10.20 each with a special newegg coupon. That is a pretty good deal for what I know to be a great fan, and I would not even consider getting them at full price.

They work great but are not that quiet. I replaced 6 YL medium fans with 3 SPs on my 360 rad and they SPs were louder. Granted, they performed just as well if not better If sound is no biggie, go for them.

Since I moved my computer out of my room sound has not been a real issue. I think I could undervolt the sp120's to be quieter than the yates but achieve the same or better performance. I really am not sure. $10.20 is a good deal. I hate it when newegg shows me good deals. I spend money. Money is not a big issue, I just don't like spending it.

My temps are pretty darn good as is. 15c above ambient as is at full speed, 20 above ambient at medium speed.

Yer grab em. I have 2 sp120's (the high performance model) and i use the 5v step down regulator on them that are supplied and they spin at 1700rpm. At that speed i cant really hear them over my other fans (case fans and gpu fans) and they keep my rad nice and chilled

The higher the static pressure the better it will force air through a dense rad even when clogged with dust as the 2 video clips above show (2 dogs, countryside = very dusty) temps dont seem to alter much either after a clean out so those sp120's force some serious air through those fins and at that price go for it.

The sale on Newegg is only ~$4 less than the everyday Amazon price anyway. Doesn't look like you can buy them and recover 100% of your cost by reselling them to someone else- you're going to have to pay to play.

Looks like it. The deal is that anyone can buy 2 for $23.99 but I got a special promo code to use for 15% off any fan. I guess if I don't like them I can get most of it back. Probably would just keep them and use my yates as regular case fans. $10.20 is a pretty good deal for a fan this quality.

I got the SP120 high speed edition on my H100 cooler in push+pull. I have used the voltage reduction adapter cause they spin rediculously fast otherwise and make tons of noise. With the adapter they run at the same speed as the low-speed editions that my friend purchased. They are 3-pin but gladly the 3 speed option on the H100 still works. At low speed (dunno how many rpm) the fans pushing air through the rad are totally silent. Really 100% silent. Then I plug the fans pulling air at the top and well... those actually are clearly audible even at low speed, I guess due to their design. Nevertheless, they are great fans which do an amazing job at low speed (73c with 4ghz i7 930 while previous stock corsair fans did 81c) and -2c per extra fan speed which becomes loud and needs headphones to be bearable.

I would definately recommend to you the low-speed SP edition, or the high speed using the included voltage reduction cable, really amazing rad fans.

EDIT: as you might be aware, fans make different noises according to their design. The noise of the SP120 is kind of low frequency which is quite important to note cause high-pitched noise is much more annoying to me (eg GPU-style noise)

I have two SP 120 Performance Edition fans in "pull" for my H100, mounted outside the case (with a custom shroud/grill to hide them and reduce noise), and yes, they have a definite "growl" to them at high speeds. But even at minimum speed for my fan controller (40%) they cool almost as well as on full speed, within 1 degree c, and are virtually silent. You can tell they are high pressure fans - try to stop one with your finger and you can feel the torque (try not to lose a finger!). I also have two AF 140 Quiet Edition fans on my side panel, and they are indeed quiet, but move a ton of air.